<template>
  <div class="nav-bar">
    <div class="left" @click="goback"><slot name="left">
        <img src="~assets/images/left.png" alt="">
    </slot></div>
    <div class="center">
      <slot>图书商城</slot>
    </div>
    <div class="right">
      <slot name="right"></slot>
    </div>
  </div>
</template>

<script>
import {useRouter} from 'vue-router'
export default {
  name: 'navBar',
  setup() {
    const router = useRouter()

    // 点击返回功能
    const goback = ()=>{
      router.go(-1)
    }

    return {
      goback
    }
  }
}
</script>

<style scoped>
.nav-bar {
  display: flex;
  background-color: var(--color-tint);
  color: #ffffff;
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  z-index: 9;
  height: 45px;
  line-height: 45px;
  text-align: center;
  box-shadow: 0 2px 0 rgba(100, 100, 100, .1);
}
.left img {
  width: 45px;
  padding: 12px;
}
.left, .right {
  width: 60px;
}
.center {
  flex: 1;
}

</style>